// Ajaxobjekt erstellen
function createRequestObject() {
    var ro;
    var browser = navigator.appName;
    if(browser == "Microsoft Internet Explorer"){
        ro = new ActiveXObject("Microsoft.XMLHTTP");
    }else{
        ro = new XMLHttpRequest();
    }
    return ro;
}

// Mausbewegung verfolgen
var mouse_X=0, mouse_Y=0;

if(document.attachEvent)
    document.attachEvent('onmousemove',setPos);
else if(document.addEventListener)
    document.addEventListener('mousemove',setPos,false);

function setPos(e){
    if(e.pageX){
        mouse_X=e.pageX;
        mouse_Y=e.pageY;
    }
    else{
        mouse_X=e.clientX;
        mouse_Y=e.clientY;
    }
}